code: def log_power(x, a, b, c):
      return a / (1.0 + (x / np.exp(b)) ** c)
  
imports: import scipy
  import logging
  import numpy
  import time
  from scipy import optimize
label_desc: Use image node_id 6 for calling a global function with example usage: log_power(x, a, b, c) and returns: unknown